Question

The Browns held _______ they called “family day” once each year.

1. A.
   that 　
2. B.
   what　
3. C.
   which 　
4. D.
   when

Answer 1

B
本题考查名词性从句。句中what引导宾语从句，在从句中作call的宾语。句意：布朗一家每年一次举行他们称之为“家庭日”的聚会。